What rule applies to this word? envy

Select the word from the list that best fits the definition math homework, problems 1-20

Part 7: the strange case of dr. jekyll and mahyuer commeresolutionpre-testactivea resolution isa struggle between opposing forcesa difficult event or situationthe message of a storythe end of a storysave and exit

Which sentence includes an infinitive phrase a) jodi and marisa went to the movies again last week b) athletes who work professionally need to practice c) clothing sizes can vary from manufacturer to manufacturer d) we enjoyed the dancers,who wore grass skirts to their ankles